[jira] Commented: (MAHOUT-376) Implement Map-reduce version of stochastic SVD

["Dmitriy Lyubimov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAHOUT-376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12914284#action_12914284 ] 

Dmitriy Lyubimov commented on MAHOUT-376:
-----------------------------------------

i am chipping out on mapper implementation on weekends. so far i got to Q orthogonalization, and should be able to produce BB^t at the next one. 
I'll post a patch when there's something working, but it is a slow progress due to my load. My employer at the moment is not eager to advance tasks that may depend on this, so i have to do it on my own time. 

> Implement Map-reduce version of stochastic SVD
> ----------------------------------------------
>
>                 Key: MAHOUT-376
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-376
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Math
>            Reporter: Ted Dunning
>            Assignee: Ted Dunning
>             Fix For: 0.5
>
>         Attachments: MAHOUT-376.patch, sd-bib.bib, sd.pdf, sd.tex, Stochastic SVD using eigensolver trick.pdf
>
>
> See attached pdf for outline of proposed method.
> All comments are welcome.

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